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參數(shù)資料
| 型號： | DC1010A-C |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 1/32頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD DELTA SIGMA ADC LTC2487 |
| 軟件下載： | QuikEval System |
| 設(shè)計資源： | DC1010A Design File DC1010A Schematic |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 系列： | Easy Drive™, QuikEval™ |
| ADC 的數(shù)量： | 1 |
| 位數(shù)： | 16 |
| 采樣率（每秒）： | 15 |
| 數(shù)據(jù)接口： | I²C，串行 |
| 已用 IC / 零件： | LTC2487 |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | LTC2487IDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487CDE#TRPBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487CDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN LTC2487IDE#PBF-ND - IC ADC 16BIT DELTA SIG 14-DFN |
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LTC2487
1
2487fd
FEATURES
APPLICATIONS
DESCRIPTION
16-Bit 2-/4-Channel
ΔΣ ADC
with PGA, Easy Drive and
I2C Interface
The LTC2487 is a 4-channel (2 differential), 16-bit,
No Latency ΔΣ ADC with Easy Drive technology and a
2-wire, I2C interface. The patented sampling scheme elimi-
nates dynamic input current errors and the shortcomings
of on-chip buffering through automatic cancellation of
differential input current. This allows large external source
impedances and rail-to-rail input signals to be directly
digitized while maintaining exceptional DC accuracy.
The LTC2487 includes programmable gain, a high accuracy
temperature sensor and an integrated oscillator. This device
can be congured to measure an external signal (from com-
binations of 4 analog input channels operating in single-
ended or differential modes) or its internal temperature
sensor. The integrated temperature sensor offers 1/2°C
resolution and 2°C absolute accuracy. The LTC2487 can
be congured to provide a programmable gain from 1 to
256 in 8 steps.
The LTC2487 allows a wide common mode input range
(0V to VCC), independent of the reference voltage. Any
combination of single-ended or differential inputs can
be selected and the rst conversion, after a new channel
is selected, is valid. Access to the multiplexer output en-
ables optional external ampliers to be shared between all
analog inputs and auto calibration continuously removes
their associated offset and drift.
L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear
Technology Corporation. No Latency ΔΣ and Easy Drive are trademarks of Linear Technology
Corporation. All other trademarks are the property of their respective owners.
Data Acquisition System with Temperature Compensation
n Up to 2 Differential or 4 Single-Ended Inputs
n Easy Drive Technology Enables Rail-to-Rail
Inputs with Zero Differential Input Current
n Directly Digitizes High Impedance Sensors with
Full Accuracy
n 2-Wire I2C Interface with 9 Addresses Plus One
Global Address for Synchronization
n 600nV RMS Noise
n Programmable Gain from 1 to 256
n Integrated High Accuracy Temperature Sensor
n GND to VCC Input/Reference Common Mode Range
n Programmable 50Hz, 60Hz or Simultaneous 50Hz/
60Hz Rejection Mode
n 2ppm INL, No Missing Codes
n 1ppm Offset and 15ppm Full-Scale Error
n 2x Speed/Reduced Power Mode (15Hz Using Internal
Oscillator and 80μA at 7.5Hz Output)
n No Latency: Digital Filter Settles in a Single Cycle,
Even After a New Channel is Selected
n Single Supply 2.7V to 5.5V Operation (0.8mW)
n Internal Oscillator
n Tiny 4mm × 3mm DFN Package
n Direct Sensor Digitizer
n Direct Temperature Measurement
n Instrumentation
n Industrial Process Control
Built-In High Performance Temperature Sensor
SDA
SCL
fO
REF+
VCC
2.7V TO 5.5V
0.1μF
COM
REF–
16-BIT ΔΣ ADC
WITH EASY-DRIVE
4-CHANNEL
MUX
IN+
IN–
2487 TA01a
2-WIRE
I2C INTERFACE
1.7k
CA1
CA0
9-PIN SELECTABLE
ADDRESSES
CH0
CH1
CH3
CH2
10μF
OSC
TEMPERATURE
SENSOR
TEMPERATURE (°C)
–55
–30
–5
ABSOLUTE
ERROR
(°C)
5
4
3
2
1
–4
–3
–2
–1
0
120
95
70
45
20
2487 TA02
–5
TYPICAL APPLICATION
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| DC1011A-A | 功能描述:BOARD DELTA SIGMA ADC LTC2498 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
| DC1011A-B | 功能描述:BOARD DELTA SIGMA ADC LTC2496 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 評估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:Easy Drive™, QuikEval™ 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件 |
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